There is an external controller to which I do not have access. It communicates with the 3-wire EEPROM AT93C56B over SPI. It is necessary to intercept the moment of recording and read the recorded data. As far as I understand, SPI does not allow to organize the connection of a type with two masters and one slave. Tell me, please, how to get around this moment. In electrical engineering is a complete ignoramus, but I had to sort things out.

  • Well, if your controller is on SPI, you can organize listening to the bus and receiving all the data that is transmitted through it. - Vladimir Martyanov
  • Those. sit on the output pins of the MK, which refers to the EEPROM, become a slave for it and duplicate the memory requests yourself? Or can it be somehow simpler? - 0xd9
  • Why Slave? Listen to what he does, disassemble the protocol and thereby receive data. - Vladimir Martyanov
  • @ Vladimir Martianov and how to connect? Just stick in the same pins, just swap MOSI and MISO? - 0xd9

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